Title:
JOINING METHOD
Document Type and Number:
WIPO Patent Application WO/2018/207386
Kind Code:
A1
Abstract:
Provided is a joining method that can prevent a plastic flowing material from flowing out from a butt section and that can reduce the thickness and weight of metal members. The joining method is for joining a first metal member (1) and a second metal member (2) by using a rotary tool (F) comprising a stirring pin (F2), and is characterized in that: the stirring pin (F2) comprises a flat surface (F3) perpendicular to the rotation axis of the rotary tool (F) and comprises a protruding section (F4) protruding from the flat face (F3); and in a friction stirring step, the flat surface (F3) is brought into contact with the first metal member (1) and the second metal member (2), and a front end face (F5) of the protruding section (F4) is inserted deeper than an upper overlapping section (J1a) to join an upper front butt section (J1b) and the upper overlapping section (J1a).
Inventors:
SEO NOBUSHIRO (JP)
HORI HISASHI (JP)
HORI HISASHI (JP)
Application Number:
PCT/JP2017/036929
Publication Date:
November 15, 2018
Filing Date:
October 12, 2017
Export Citation:
Assignee:
NIPPON LIGHT METAL CO (JP)
International Classes:
B23K20/12
Domestic Patent References:
| WO2007119343A1 | 2007-10-25 | |||
| WO2017033923A1 | 2017-03-02 |
Foreign References:
| JPH11267859A | 1999-10-05 |
Attorney, Agent or Firm:
ISONO INTERNATIONAL PATENT OFFICE, P.C. (JP)
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